[INFO] crate unsplash-rs 0.1.1 is already in cache
[INFO] testing unsplash-rs-0.1.1 against 1.38.0 for beta-1.39-1
[INFO] extracting crate unsplash-rs 0.1.1 into work/builds/worker-10/source
[INFO] validating manifest of crates.io crate unsplash-rs 0.1.1 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate unsplash-rs 0.1.1
[INFO] finished tweaking crates.io crate unsplash-rs 0.1.1
[INFO] tweaked toml for crates.io crate unsplash-rs 0.1.1 written to work/builds/worker-10/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 815ff3c9d5441bb2cfee73a65a5538b2f13082b258e701b9f6bd9468be7f0054
[INFO] running `"docker" "start" "-a" "815ff3c9d5441bb2cfee73a65a5538b2f13082b258e701b9f6bd9468be7f0054"`
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling serde_url_params v0.1.1
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling unsplash-rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(option_replace)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn cause(&self) -> Option<&Fail> { self.inner.cause() }
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `unsplash-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "815ff3c9d5441bb2cfee73a65a5538b2f13082b258e701b9f6bd9468be7f0054"`
[INFO] running `"docker" "rm" "-f" "815ff3c9d5441bb2cfee73a65a5538b2f13082b258e701b9f6bd9468be7f0054"`
[INFO] [stdout] 815ff3c9d5441bb2cfee73a65a5538b2f13082b258e701b9f6bd9468be7f0054